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Finding the Fourth Proportional to 318,517.32, 439,542.86 and 175,263.96

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Solution

The fourth proportional to 318,517.32, 439,542.86 and 175,263.96 is: 241,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,517.32 : 439,542.86 = 175,263.96 : x
  2. Step 2: Convert to fraction form
    318,517.32/439,542.86 = 175,263.96/x
  3. Step 3: Cross multiply
    318,517.32x = 439,542.86 × 175,263.96
  4. Step 4: Simplify right side
    318,517.32x = 77,036,022,233.33
  5. Step 5: Solve for x
    x = 77,036,022,233.33/318,517.32
  6. Step 6: Final answer
    x = 241,858.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.